NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Nitrogen oxides from high-altitude aircraft - An update of potential effects on ozoneIn the study of fuel consumption rate by stratospheric aircraft, the range of nitric oxide injection is interpreted as an eightfold range of emission index (5-40) with both the one- and the two-dimensional models. Possible effects of future aircraft NO(x) emissions on stratospheric ozone are considered for a broad range in magnitude, altitude, and latitude of the assumed NO(x) emissions. Results of the sensitivity studies using both models are discussed. Large ozone reductions are found to be outside the expected range of validity of these models and are to be anticipated if there should be a large fleet of stratospheric aircraft with NO(x) emission characteristics of current commercial aircraft. Under the test conditions, a global ozone reduction of about 9 percent is estimated for a jet engine emission index of 15 in both models. If engines are redesigned to reduce the emission index to the NASA goal of 5, global average ozone reductions are between 2 and 3 percent, and those of the Northern Hemisphere are about 4 percent. The effects of stratospheric aircraft on ozone could be further reduced through operation at lower altitudes, reduction of aircraft, and efficient fuel consumption.
Document ID
19900029353
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Johnston, Harold S.
(California, University Berkeley, United States)
Kinnison, Douglas E.
(California Univ. Berkeley, CA, United States)
Wuebbles, Donald J.
(Lawrence Livermore National Laboratory Livermore, CA, United States)
Date Acquired
August 14, 2013
Publication Date
November 20, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
90A16408
Funding Number(s)
CONTRACT_GRANT: W-7405-ENG-48
CONTRACT_GRANT: DE-AC03-76SF-00098
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available